@Test
        @DisplayName("Should initialize with self-referencing next")
        void testConstructorInitialization() {
            DfsReferralDataImpl data = new DfsReferralDataImpl();
            assertNotNull(data.next());
            assertSame(data, data.next());
        }
    }

    @Nested
    @DisplayName("Unwrap Tests")
    class UnwrapTests {

        @Test

    }

    @Nested
    @DisplayName("Filter Flags Constants Tests")
    class FilterFlagsTests {

        @Test
        @DisplayName("Verify FILE_NOTIFY_CHANGE_FILE_NAME constant value")
        void testFileNotifyChangeFileName() {
            assertEquals(0x00000001, FileNotifyInformation.FILE_NOTIFY_CHANGE_FILE_NAME);
        }

        @Test
        @DisplayName("Verify FILE_NOTIFY_CHANGE_DIR_NAME constant value")

        }
    }

    @Nested
    @DisplayName("Constants Tests")
    class ConstantsTests {

        @Test
        @DisplayName("Should have correct SMB2_READFLAG_READ_UNBUFFERED value")
        void testReadUnbufferedFlag() {
            assertEquals((byte) 0x1, Smb2ReadRequest.SMB2_READFLAG_READ_UNBUFFERED);
        }

        @Test
        @DisplayName("Should have correct SMB2_CHANNEL_NONE value")

        @DisplayName("Should extend jcifs.smb1.http.Handler")
        void testInheritance() {
            // Then
            assertTrue(handler instanceof jcifs.smb1.http.Handler);
            assertTrue(handler instanceof URLStreamHandler);
        }
    }

    @Nested
    @DisplayName("Default Port Tests")
    class DefaultPortTests {

        @Test
        @DisplayName("Should return HTTPS port 443")

    @ParameterizedTest
    @EmptySource
    @DisplayName("valueOf(\"\") throws IllegalArgumentException for empty input")
    void valueOfRejectsEmpty(String empty) {
        assertThrows(IllegalArgumentException.class, () -> RequestParam.valueOf(empty));
    }

    // Invalid: null is not allowed for valueOf
    @ParameterizedTest
    @NullSource
    @DisplayName("valueOf(null) throws NullPointerException")

        }

        @Test
        @DisplayName("Should not throw when preparing with null next response")
        void testPrepareWithNullNext() {
            assertDoesNotThrow(() -> response.prepare(mockRequest));
        }
    }

    @Nested
    @DisplayName("State Management Tests")
    class StateManagementTests {

        @Test
        @DisplayName("Should reset state correctly")

        @Test
        @DisplayName("isCancel should always return false")
        void testIsCancel() {
            assertFalse(testRequest.isCancel());
        }

        @Test
        @DisplayName("getCreditCost should return 1 by default")
        void testGetCreditCost() {
            assertEquals(1, testRequest.getCreditCost());
        }

        @Test
        @DisplayName("setRequestCredits should set credit value")

        return new URL(null, spec, new Handler());
    }

    @Test
    @DisplayName("getConfig returns context config")
    void getConfig_returnsConfig() {
        SmbTreeConnection c = newConn();
        assertSame(config, c.getConfig());
    }

    @Test
    @DisplayName("acquire calls tree.acquire on first usage, release calls tree.release at zero")
    void acquire_release_lifecycle() {

    @DisplayName("Test sflags field with various byte values")
    public void testSflagsField(byte value) {
        // When
        serverData.sflags = value;

        // Then
        assertEquals(value, serverData.sflags);
    }

    /**
     * Test setting and getting int fields
     */
    @Test
    @DisplayName("Test int fields with various values")

        }

        @Test
        @DisplayName("Should create lock with negative values")
        void testConstructorWithNegativeValues() {
            lock = new Smb2Lock(-1L, -1L, -1);

            assertNotNull(lock);
        }
    }

    @Nested
    @DisplayName("Size Tests")
    class SizeTests {

        @Test
        @DisplayName("Should return constant size of 24 bytes")